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Composition of extraction products from alkylated high-sulphur coals

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Central European Journal of Chemistry

Abstract

Products of reductive and non-reductive methylation of two high-sulphur coals (Mequinenza and Illinois No. 6) have been extracted by dichloromethane. It has been established that the efficiency of the transformation of coal to the products soluble in CH2Cl2 is higher for coals subjected to non-reductive methylation by the Liotta method than for those after reduction in the potassium/liquid ammonia system. The extracts and the extraction residues were subjected to elemental analysis, IR spectroscopy, and AP-TPR (Atmospheric Pressure-Temperature Programmed Reduction) measurements. It has been shown that the main species undergoing extraction by CH2Cl2 are aliphatic compounds or aromatic structures of low degree of condensation. The effect of the extraction on the sulphur groups in coal has been discussed.

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Authors and Affiliations

  1. Faculty of Chemistry, Adam Mickiewicz University, Grunwaldzka 6, 60-780, Poznań, Poland

    Mieczysław Kozłowski & Helena Wachowska

  2. Laboratory of Applied Chemistry, CMK, Limburgs Universitair Centrum, B-3590, Diepenbeek, Belgium

    Jan Yperman

Authors
  1. Mieczysław Kozłowski
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  2. Helena Wachowska
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  3. Jan Yperman
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Kozłowski, M., Wachowska, H. & Yperman, J. Composition of extraction products from alkylated high-sulphur coals. cent.eur.j.chem. 1, 366–386 (2003). https://doi.org/10.2478/BF02475223

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  • DOI: https://doi.org/10.2478/BF02475223

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